Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to JP1974076663UpriorityCriticalpatent/JPS6014814Y2/ja
Priority to US05/490,246prioritypatent/US3969902A/en
Publication of JPS516701UpublicationCriticalpatent/JPS516701U/ja
Application grantedgrantedCritical
Publication of JPS6014814Y2publicationCriticalpatent/JPS6014814Y2/ja